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Bean Weevils

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Bean Weevil Facts

  • Scientific name: Chrysomelidae
  • Size: 3.5 to 5mm
  • Color: Black or brown
  • Appearance: Compact oval-shaped, often with mottling or striped patterns

Bean Weevil Behavior

Weevils are a type of beetle but are distinguishable by their elongated snout. Some insects that are scientifically categorized as beetles bear the name of “weevils,” such as the bean weevil. Bean weevils are actually beetles, lacking the snouts of true weevils. Because bean weevils, also commonly called seed weevils, infest a variety of seeds and beans and actually belong to the family Chrysomelidae, which includes leaf beetles. Bean weevils are granivores and can live out their entire lives inside a single seed. There are over 1,350 species of bean weevils globally, including cowpea weevils.

Bean weevils thrive on all continents in the world with the exception of Antarctica. Probably originating in West Africa, according to historians, the majority of bean weevil populations spread throughout the world in legume shipments, while some were distributed by people moving dry stores of beans from place to place.

Bean Weevils Make Excellent Research Subjects

Considered model organisms because of their quick generation times and low maintenance, bean weevils are commonly used in research and education.

Bean Weevil Affects on Agriculture

Several species, considered agricultural pests in the US, destroy bean crops and some species even infest warehouse bean stores, making their way into household cupboards where they can contaminate food items.

Adult female bean weevils do not feed on beans but deposit their eggs on whole beans or seeds. Beans provide nutrition for developing larvae that eat their way into beans. When bean larvae pupate, they emerge through exit holes as adults.

Bean Weevil Photos
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Cow Pea Weevil
Cow Pea Weevils
Cow Pea Weevil
Cow Pea Weevils

4 Seasons Pest Control Options & Pricing

Truly Nolen’s 4 Seasons Pest Control will treat your home immediately, then begin quarterly treatments the following month to ensure your home is protected from many household pests.
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We will treat the affected area unconditionally until you are satisfied.
What it includes*
Ants
Crickets
Fleas
Mice
All Roaches
Scorpions
Spiders
Ticks
Wasps
Other**
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4 standard services per year
Unlimited callbacks on request
Assessment to prevent pests from coming back
* If an infestation is deemed challenging, or the square footage of the home does not match what was provided, pricing may need to be amended following our inspection.
** Other pests include: Beetles, Boxelders, Bugs, Caterpillars, Earwigs, Millipedes, Silverfish.
* If an infestation is deemed challenging, or the square footage of the home does not match what was provided, pricing may need to be amended following our inspection.
One-Time intensive Treatment $275
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Get rewarded for referring friends to Truly Nolen! Receive $25 off your next service when a friend signs up for 4 Seasons Pest Control Service.*

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